ADL5562 low frequency performance

I have the following two questions- The datasheet specifies performance down to 10 MHz. Does the ADL5562 maintain performance down to 9 kHz.- The datasheet specifies performance for a 200 Ω load. How will the performance be for a 50 Ω load.

Yes, the ADL5562 will perform down to 9kHz. The performance will be better in some aspects and maybe worse in others.

For the load, yes, you can use a 50ohm load, keep in mind though, that the driver will have to work harder to achieve the level you need to reach fullscale of the ADC that you are driving.

I assume you are asking this, because the anti-aliasing filter (AAF) that you are designing is 50/50ohms. If that is the case, you can check out this app note the analog.com website. See the link below, where this will give you some hints on how to do this AAF design properly.

Yes, the ADL5562 will perform down to 9kHz. The performance will be better in some aspects and maybe worse in others.

For the load, yes, you can use a 50ohm load, keep in mind though, that the driver will have to work harder to achieve the level you need to reach fullscale of the ADC that you are driving.

I assume you are asking this, because the anti-aliasing filter (AAF) that you are designing is 50/50ohms. If that is the case, you can check out this app note the analog.com website. See the link below, where this will give you some hints on how to do this AAF design properly.